Alarm bell and look



(No Model.)

J. FEE.

ALARM BELL AND LOCK.

Patented May 3, 1887.

zl'iiwas'w': fizz $111,502

0% far; I

N. PETERS. Plwto-Lhographur. walhinginn. D.C.

UNITED STATES PATENT OFFICE.

JOHN FEE, OF MONTREAL, QUEBEC, CANADA, ASSIGNOR TO CHARLES SALTER, OFSAME PLACE.

' ALARM-BELL AND LOCK.

SPECIFICATION forming part of Letters Patent No. 362,151, dated May 3,1887.

Application filed August 17, I886. Serial No. 211,167. (No model.)

To all whom, it may concern:

Be it known that I, JOHN FEE, a citizen of the Dominion of Canada,residing in the city and district of Montreahand Province of Quebec,Canada, have invented certain new and useful Improvements in Alarm-Bellsand Locks; and I do hereby declare that the following is a full, clear.and exact description of the invention, which will enable others skilledin the art to which it appertains to make and use the same.

My invention relates to improvements in door alarm-bells andburglar-proof locks combined, by which, when applied at any distanceabove an ordinary door-knob, it will detect by a bell-sound the presenceof any person turning the said door-knob, or, if wanted, lock said doorindependently from the ordinary door-lock, as will be fully explained inthe following description of the said invention.

On the annexed drawings, which illustrate my invention, Figure 1represents a plan view of the invention with the cap and also a part ofthe bell or gong taken off, so as to show the entire mechanism; Fig. 2,a side elevation of the same; and Fig. 3 a transverse section at x x ofFig. 1, showing cap which covers the mechanism of the said bell andlock.

Similar letters refer to similar parts through out the several views.

- A is the plate or holder, on which are fixed the different parts ofthe mechanism. This plate is formed of but one piece, and is out under aspecial die to simplify the manufacture and diminish the cost of thearticle as much as possible.

On the plate A are died at the same time the screw-hole a, to fix plateA on the door above the ordinary door-knob, as aforesaid, and then holeI), where the gong B is screwed on. Longitudinal slots 0 c are also madeduring the same process, and the catches d d are bent upward to furnishaholdfor the spiral springs O G. On the plate A are also screwed on orpivoted the lock-lever D at e, the dog E at f, to which the hammer F isattached by means of the flexible wire 9, and the flat spring G by meansof the screw h. H is a saddle, made to go over the ratchet I. It has twoside catches, it, to hold the said ratchet under, and two other or topcatches, j j, for spiral springs C G. The said saddle H is pierced witha square hole, J, to fit on the door-knob spindle k.

I is a ratchetwith one or more teeth, Z. The ratchet I is pierced with around hole, on, (shown in dotted lines in Fig. 1,) to let the spindle kgo through easily. The said ratchet is made narrower than the saddle IIto allow play under said saddle.

E is the dog, as aforesaid, having the shape shown in the drawings, andprovided with a tooth, 'u, made to correspond with those of the ratchetI; also,with projection o, whichserves to lock the mechanism anddoorknob with lock-lever D, and projection 12 to catch on the Spring G.

t is a small projection for the tooth u of the dog E to abut against,and so limit its action.

K is a cap, made of any suitable material, to fit on the mechanism abovedescribed, with a closed end, L, (shown in dotted lines on Fig. 2,) andprovided with under projections, q q, Fig.3, to slide along plate A andhold on it. The cap is also provided with a slot in the side to let passthe lock-lever handle D.

Now Ishall explain the working-of myinvention,which it will be seen isoft-he simplest kind.

The lock D being in the position shown in Fig. 1, and thedoor-spindlekbeing introduced in the hole J and turned in the directionof the arrow, Fig. 1, will cause the saddle to move and bring with itthe ratchet I. Then the teeth Z of the ratchet I will abut against thetooth u of the dog E, and raise it enough to pass under it. At thismoment the spring G will bring the dog E in its normal position, and thehammer F, having the flexible and elastic wire 9, will strike the gongB. This will repeat itself with the number of teeth of the ratchet I.The spiral springs O O are used to bring the saddle H and ratchet I inits normal position. (Shown in Fig. 1.) If, on the other hand, the lockD should belifted toward slot 7), the head 1' of said lock will abutagainst part 0 of the dog and cause it to movearound pivot f, so as tolet tooth a free from the reach of the teeth Z of the ratchet I. In thiscase the moving of the door-knob will not produce the sound of the gong,as will be easily understood. Thirdly, if thelock D should be turneddownwardthat is to say, toward the spring G-then the projection s willengage behind 0 and hold firm the dog E, ratchet I, and saddle H in theposition shown in Fig. 1. It can be easily understood here that in thisspecial case the attempts to move the door-knob will be fruitless, onaccount of the square shape of the spindle k and the corresponding hole,J of the saddle H. The door will then be locked.

My invention could also be used as a burglar-pr00f alarm as well.

Having described my invention, what I claim, and desire to secure byLetters Patent,

1. The saddle H, going over the ratchet I, provided with a hole, J, tofit on the door-knob spindle 7c, combined with the pivoted dog E, thatcarries the bell-hammer F, this dog being also provided with the toothto and projections o and 1), also side catches, i t, for the purpose oflimiting the action of said ratchet I, and top catches, jj, to securespiral springs O O at one end, all said parts being combined with saidsprings (l O, ratchet I, and door-knob spindle k, and arranged andoperated as described.

2. The dog E, pivotedatfand holding hamnier F, provided with a tooth, u,corresponding to those of ratchet I, a projection, 19, to go over fiatspring G, and another projection, 0, to engage into the lock-lever D,for the purpose of either operating the alarm or looking the wholemechanism, and thus prevent the working of either the alarm or thedoor-knob itself, the said dog E being combined with the ratchet I,having two or more teeth, Z, and a hole, in, to let pass the door-knobspindle 70, also with the lock-lever D, pivoted at e, and provided withhead 1' and projection s, and fiat spring G, fixed at one end, It, andworking the said dog E by pressing on its projection 12, all arrangedand operated as described.

In testimony whereof I have affixed my sig nature in presence of the twosubscribing witnesses.

JOHN FEE.

In presence of- NAP. LOZEAU, A. BONNEY.

